Author Question: A ball is thrown upward with a speed and direction such that it reaches a maximum height of 18.0 m ... (Read 89 times)

genevieve1028 · **on:** Jul 29, 2018

A ball is thrown upward with a speed and direction such that it reaches a maximum height of 18.0 m above the point it was released. At its maximum height it has a speed of 20.0 m/s. With what speed was the ball released?

A)

27.4 m/s

B)

24.3 m/s

C)

35.1 m/s

D)

31.3 m/s

E)

39.0 m/s

Question 2

When five equal positive charges are uniformly spaced along the x-axis, the force on the next to last charge on the right is directed

A)

to the right.
B)

possibly in the negative y-direction.
C)

zero.
D)

possibly in the positive y-direction.
E)

to the left.